只允许某个 UIGestureRecognizer 立即执行

发布于 2024-12-23 16:10:45 字数 436 浏览 1 评论 0 原文

我想防止 UIGestureRecognizers 同时工作，所以我实现了下面的方法。但是，我只想允许 otherGestureRecognizer 在gestureRecognizer尝试同时识别时自行工作。

请你告诉我如何才能实现这一目标？

顺便说一句，这是为了防止在 tableView 处于“删除模式”时视图向下平移（拖动）。

- (BOOL) gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
    gestureRecognizer.enabled = NO;
    return NO;
}

原文

I want to prevent UIGestureRecognizers working simultaneously, so I implemented the method below. However, I would only like to allow the otherGestureRecognizer to work on it's own while the gestureRecognizer is attempting to recognise simultaneously.

Please can you tell me how I can achieve that?

Btw, this is to prevent the view from panning (dragging) down while the tableView is in 'deletion mode'.

- (BOOL) gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer {
    gestureRecognizer.enabled = NO;
    return NO;
}

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凡间太子 2024-12-30 16:10:45

您的问题有点不清楚，但我认为您可能正在寻找：

- (void)requireGestureRecognizerToFail:(UIGestureRecognizer *)otherGestureRecognizer

来自 UIGestureRecognizer 文档

此方法创建与另一个手势识别器的关系，延迟接收器从 UIGestureRecognizerStatePossible 的转换。接收器转换到的状态取决于 otherGestureRecognizer 发生的情况：

Your question is a bit unclear but I think you might be looking for:

- (void)requireGestureRecognizerToFail:(UIGestureRecognizer *)otherGestureRecognizer

From the UIGestureRecognizer docs

This method creates a relationship with another gesture recognizer that delays the receiver’s transition out of UIGestureRecognizerStatePossible. The state that the receiver transitions to depends on what happens with otherGestureRecognizer:

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